run.py

from flask import Flask, render_template, redirect, url_for, request, flash , send_from_directory
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager, UserMixin, login_user, login_required, logout_user, current_user
from config import Config
from models import db, User, Achievement

app = Flask(__name__ , template_folder=render_template)
app.config.from_object(Config)
db.init_app(app)

login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'login'

@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))

@app.route('/')
def index():
    return send_from_directory('html_files', 'index.html')

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        username = request.form['username']
        password = request.form['password']
        user = User.query.filter_by(username=username, password=password).first()
        if user:
            login_user(user)
            return redirect(url_for('dashboard'))
        else:
            flash('Invalid credentials')
    return render_template('login.html')

@app.route('/dashboard')
@login_required
def dashboard():
    return render_template('dashboard.html', username=current_user.username)

@app.route('/achievements')
@login_required
def achievements():
    user_achievements = Achievement.query.filter_by(user_id=current_user.id).all()
    return render_template('achievements.html', achievements=user_achievements)

@app.route('/leaderboard')
@login_required
def leaderboard():
    users = User.query.all()
    return render_template('leaderboard.html', users=users)

@app.route('/logout')
@login_required
def logout():
    logout_user()
    return redirect(url_for('index'))

if __name__ == '__main__':
    with app.app_context():
        db.create_all()  # Create database tables
    app.run(debug=True , port=400)